Design and Application of Marine Air Compressor Training Network System

Zhong Miaoqing Liu Zhenchao Guangdong Transportation Vocational and Technical College Guangzhou Guangzhou 510800 air compressor training network to meet the needs of curriculum design and crew assessment projects.

In the passenger and cargo liner pusher and the offshore engineering auxiliary ship used for offshore oil exploration and transportation, compressed air source with different pressure is required as the external power of the start control related equipment, and the pressure flow and duration of the compressed air are safe for the navigation of the ship. And the impact of economic performance on production is often the determining factor. This paper combines the teaching of compressed air equipment and the requirements of crew assessment training to design, develop and assemble the air compressor system, realize the interactive monitoring of the on-site and engine room control room, and meet the requirements of real ship automatic control. Through the training interface, the system collects and controls the parameters of the system, performs simulation operation and training, and can realize monitoring on the Internet through a browser, adapt to and meet the practical teaching, and complete the network training.

The system configuration requires that the air compressor is an important auxiliary machine for supplying air to the gas cylinder. The compressed air on the ship is mainly used for starting the commutation of the main diesel engine and starting the diesel engine, and also for other auxiliary machinery that requires compressed air. The whistle centrifugal pump is supplied by a self-priming device and the like. The working pressure of the main air bottle is mostly around 313. Other places requiring lower pressure air are provided by the main gas cylinder after decompression by the pressure reducing valve. In the motorized ship, there are 23 micro or small medium pressure water-cooled two-stage piston air compressors, or air-cooled piston air compressors. In this air compressor system, the output of compressed air is an air bottle of about 150 liters, and the air consumption is medium. The basic configuration parameters are water-cooled air compressor type 26030, double-stage piston air compressor. Rated flow rate 60m3h rated discharge pressure is 0.6MPa, grade is 31; air-cooled air compressor is 0.34830, double-cylinder compression air compressor, speed is 60 displacement, 0.34 rated working pressure 2.94 air bottle working pressure range It is 1.53.01. It is required to realize independent or linkage automatic control of water-cooled air-cooled air compressor according to the demand of gas consumption.

The electrical control design is guided by the function demand task. The components such as the cooler gas-liquid separator filter safety valve pressure relay AC contactor and piping system are selected to meet the needs of the operating object, the control platform is designed, and the air pressure is set up. Machine control system for process control. Marine air compressor system electrical 1.

揆Development of the power bus network training interface In order to improve and improve the training content of the training equipment, to meet the needs of a variety of practical teaching methods, design the air compressor network training program, using the maintenance control configuration software 0 plus 36 shift application mode and Distributed control system, structure, centralized management, and technical goals of decentralized control. The subsystem can maintain the basic operation of the air compressor system when it is separated from the central control unit, and the marine air compressor monitoring system box 2.

3.1 The central control unit system of the upper computer takes the industrial computer as the upper computer, the operation platform adopts the evaluation, 132000, the monitoring software is the real-time application software, deducting 60, ratio, 16.0 software, the upper computer is controlled by the central, 0 machine and peripheral auxiliary equipment and monitoring Software and other components, for the core part of the entire automatic control system, providing human-machine interface, monitoring and management of the automatic control system, data sample collection and calculation, control and data exchange between devices, according to the system controlled equipment and inspection point inspection results After the failure alarm, store historical data and support data query, generate various reports and printouts. At this level, the operator can control the switching of the working conditions of the air compressor system and start and stop by clicking the menu to realize the linkage between the related equipment, parameter setting modification and emergency operation.

The lower position machine is controlled by Ling Factory, 260 Yi 26 people analog module, and only 3232 claw 3485 communication interface to achieve data exchange, thus completing the automatic control of the air compressor system, the subsystem of the lower machine is 3.2. The switch input and output interface of 10 is used to control the water pump, the on-off valve flow weight controller, the air compressor running condition detection and the switch quantity of each relay switch are directly connected to 10.

3.2.2 Analog input and output module, used for the detection of flow signals, pressure signals, and analog children's output to equipment such as regulating valves.

3.2.3 The collector is used to sample the multi-channel temperature and pressure signals and send them to the central control unit.

In the operation training cabinet, a special button is specially set up to simulate some differences in the system. I am talking about the network bureau, the cold wood person, the skin cooling water, 4 tons of 觥 (four) leather motor, the air pressure, the ejaculation, the air, the 5 舡 5 Repairing ability training such as coping with the situation.

3.4 Network Training This system uses and configures the platform, adopts the operation mode of operation and simulation system, physical and simulation, and provides practical turbine equipment training projects such as air compressor system component operation status judgment maintenance and process operation, reducing practical teaching expenses. And the cost of consumables. The data exchange and processing in the project is completed by the database, the logic process is responsible for the script, the configuration changes the database and the address of the field test control, completes the 10 device process data mapping monitoring, etc., the air compressor network training control system 3.

Function Description 4.1 Complete the air storage of the compressed air bottle, meet the requirements of the diesel engine gas, and realize the automatic control; use the teaching tasks of the air compressor on-site experimental teaching disassembly and operation; meet the circuit control training simulation failure Maintenance and air compressor system job training and research 4.2 In the network training interface, the air bottle can be pressure tested and inflated by mouse click, the cooling water system flow adjustment, decompression start, working condition switching and equipment start and stop sequence And the time interval between start and stop. The control system can control the operation of the air compressor in accordance with the sequence and linkage of each device that has been prepared in advance.

In the purple, Walker strongly exposed the reaction of racism between black men and women. At the beginning of the 2366 novel, Julie had almost no confidence. She was actually a slave and victim of men. Under the influence of Shag Sofia and Netti. She learned to fight for her rights and began to live independently. She got a reward. In the end, she grew into a complete solid 2, century modern woman. Through the development of Julie's character, Walker revealed to us that the female support operation training program is ready to check the power supply voltage and the corresponding electrical equipment before starting the air compressor; check the oil level and the tightness of the transmission belt; check the lubrication system cooling system and Unload the device; open the shut-off valve on the air bottle line to drain the water in the bottle in time.

The unloading operation is performed before the start of the air compressor starts.

Air compressor operation Lubrication system cooling system and unloading device inspection; open gas-liquid separator bleed valve operation.

The air compressor is deactivated before the parking is stopped, and the compressed air remaining in the pipeline and the cylinder is discharged.

Operation management and emergency measures Air compressor daily technical management points and emergency treatment methods.

Simulate the faulty maintenance system in the faulty maintenance system to achieve the training of the air compressor system troubleshooting process.

Conclusion With the development of control technology, the automation requirements of various devices are getting higher and higher. The control system consisting of relay contactors and buttons can no longer meet the needs of complex control functions. Direct digital systems have emerged in the field of electrical automatic control. Technologies such as distributed control systems. Nowadays, many equipments, such as air compressors, are based on the soft control method of the seven computers. They have perfect control and protection functions, which make the corresponding product use and operation performance more human and intelligent. , Liu Dekuan, ship auxiliary machine. Dalian Dalian Maritime University Press, 2006.2.

Su Jingbo. Turbine management. Dalian Dalian Maritime University Press, 2006.2.

Lin Huafeng, Zhao Kewei, Chen Shenglin. Marine electrical equipment. Harbin Engineering University Press, 2009.1.

Zhu Jianyuan. Marine diesel engine. Beijing People's Communications Press, 2008.9.

Yuan Xiuying. Configuration control technology. Beijing Electronics Industry Press, 2003.8.

Machine management and automation of refrigeration and air conditioning equipment.

Liu Zhenchao 1973, male, assistant manager of marine engineering management, research direction is CNC technology and automation control technology.

English and American Literature.

Responsible editor Wang Jing is connected to the circuit parallel capacitor on page 86. Do not mistake the capacitor in parallel with the input circuit. 2 In order to make the frequency range both high and low, the coverage of the two ends is deeper. Therefore, when setting the high and low frequency, it is necessary to leave 13 rich. 3 The frequency range must be adjusted repeatedly for more than 23 times. 4 trimmer capacitors are only allowed to rotate within 270 degrees.

3.3 Adjust the tuning to adjust the sensitivity. When adjusting, let the high-frequency signal generator output 600 reverse 1 signal. The radio tuning wheel pointer is placed on the 6002. When the signal sound is heard, the debugging is performed. When debugging, the antenna coil is moved. The position on the magnet makes the signal sound the loudest. That is, after finding the best position of the coil on the magnetic bar and adjusting the low end, let the high frequency signal generator output the 1500109 signal, place the radio tuning wheel pointer on the 150, 52, and debug when the signal sound is heard. When debugging, use a non-inductive screwdriver to turn the input loop and fine-tune the capacitor to make the signal sound the loudest. The two levels must be adjusted repeatedly for more than 23 times.

When debugging, please pay attention to the 1 adjustment, the high-end adjustment component is the input circuit shunt capacitor, do not mistake the capacitor in parallel with the oscillation circuit. 2 The position of the antenna coil on the magnet bar needs to be fixed immediately after it is found. 3 Adjust the high and low ends to adjust more than 23 times. 4 trimmer capacitors are only allowed to rotate within 270 degrees. 5 Pay attention to whether the frequency pointer of the dial is smooth or not, and whether the fixing screw of the dial is too compact. , responsible editor Han Ming

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